import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'package:shared_preferences/shared_preferences.dart';

class JoinMatchPage extends StatefulWidget {
  @override
  _JoinMatchPageState createState() => _JoinMatchPageState();
}

class _JoinMatchPageState extends State<JoinMatchPage> {
  TextEditingController _matchIdController = TextEditingController();
  bool _isJoined = false;
  bool _isLoading = false;
  int _player1Score = 0;
  int _player2Score = 0;
  String? _matchId;

  final String _joinMatchApiUrl = 'http://api.dthpp.mercurio.moe/joinmatch'; // Replace with your API endpoint
  final String _endMatchApiUrl = 'http://api.dthpp.mercurio.moe/endmatch';   // Replace with your API endpoint

  // Join Match Function
  Future<void> _joinMatch() async {
    setState(() {
      _isLoading = true;
    });

    final prefs = await SharedPreferences.getInstance();
    final String? token = prefs.getString('token');
    final String matchId = _matchIdController.text;

    if (token == null) {
      _showToast('No token found. Please login again.');
      setState(() {
        _isLoading = false;
      });
      return;
    }

    try {
      final response = await http.post(
        Uri.parse(_joinMatchApiUrl),
        headers: {'Content-Type': 'application/json'},
        body: json.encode({'token': token, 'match_id': int.parse(matchId)}),
      );

      if (response.statusCode == 200) {
        setState(() {
          _isJoined = true;
          _player1Score = 0;
          _player2Score = 0;
          _matchId = matchId;
        });
        _showToast('Joined match successfully!');
      } else {
        _showToast('Failed to join match.');
      }
    } catch (e) {
      _showToast('Error: $e');
    } finally {
      setState(() {
        _isLoading = false;
      });
    }
  }

  // Increment/Decrement Player Scores
  void _updateScore(int player, int delta) {
    setState(() {
      if (player == 1) {
        _player1Score += delta;
      } else if (player == 2) {
        _player2Score += delta;
      }
    });
  }

  // End Match Function
  Future<void> _endMatch() async {
    setState(() {
      _isLoading = true;
    });

    final prefs = await SharedPreferences.getInstance();
    final String? token = prefs.getString('token');

    if (token == null) {
      _showToast('No token found. Please login again.');
      setState(() {
        _isLoading = false;
      });
      return;
    }

    try {
      final response = await http.post(
        Uri.parse(_endMatchApiUrl),
        headers: {'Content-Type': 'application/json'},
        body: json.encode({
          'match_id': int.parse(_matchId!),
          'player1_score': _player1Score,
          'player2_score': _player2Score,
        }),
      );

      if (response.statusCode == 200) {
        _showToast('Match ended successfully!');
        Navigator.pop(context);
      } else {
        _showToast('Failed to end match.');
      }
    } catch (e) {
      _showToast('Error: $e');
    } finally {
      setState(() {
        _isLoading = false;
      });
    }
  }

  void _showToast(String message) {
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(content: Text(message)),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Join Match'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: _isLoading
            ? Center(child: CircularProgressIndicator())
            : _isJoined
            ? Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                IconButton(
                  icon: Icon(Icons.remove),
                  onPressed: () => _updateScore(1, -1),
                ),
                Text(
                  'Player 1 Score: $_player1Score',
                  style: TextStyle(fontSize: 20),
                ),
                IconButton(
                  icon: Icon(Icons.add),
                  onPressed: () => _updateScore(1, 1),
                ),
              ],
            ),
            SizedBox(height: 16),
            // Player 2 Score Controls
            Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                IconButton(
                  icon: Icon(Icons.remove),
                  onPressed: () => _updateScore(2, -1),
                ),
                Text(
                  'Player 2 Score: $_player2Score',
                  style: TextStyle(fontSize: 20),
                ),
                IconButton(
                  icon: Icon(Icons.add),
                  onPressed: () => _updateScore(2, 1),
                ),
              ],
            ),
            SizedBox(height: 32),
            // End Match Button
            ElevatedButton(
              onPressed: _endMatch,
              child: Text('End Match'),
            ),
          ],
        )
            : Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            // Match ID Text Field
            TextField(
              controller: _matchIdController,
              decoration: InputDecoration(
                labelText: 'Enter Match ID',
                border: OutlineInputBorder(),
              ),
            ),
            SizedBox(height: 16),
            // Join Match Button
            ElevatedButton(
              onPressed: () {
                if (_matchIdController.text.isNotEmpty) {
                  _joinMatch();
                } else {
                  _showToast('Please enter a Match ID.');
                }
              },
              child: Text('Join Match'),
            ),
          ],
        ),
      ),
    );
  }
}